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-rw-r--r--include/linux/sysctl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index a9b80fc7f0f..4cd267fe87e 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -180,6 +180,7 @@ enum
VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
+ VM_DROP_PAGECACHE=29, /* int: nuke lots of pagecache */
};